# USB to RS422/RS485 Serial Adapter StarTech ICUSB422IS

**URL:** https://aio.lv/en/product--startech-icusb422is--628684
**Data updated:** 2025-12-28 21:31 (EET)
**Category:** Serial & Parallel Cables
**Manufacturer:** StarTech
**Manufacturer code:** ICUSB422IS
**EAN:** 0065030830683
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 180.49 €
**Prices and availability valid until:** 2026-07-11 23:59
**Price without VAT (21%):** 149.17 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--startech-icusb422is--628684

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.07.2026 | free |
| Pickup points | 16.07.2026 | 1.99 EUR |
| Courier delivery to door | 16.07.2026 | 4.99 EUR |

## Summary description

The StarTech.com 1 Port Metal Industrial USB to RS422/RS485 Serial Adapter with Isolation features a USB B connector and a 1.8 m cable length. This robust black adapter is designed for industrial applications, providing reliable communication between USB and RS-422/485 devices. Its isolation feature protects against electrical interference, ensuring stable data transmission. Ideal for connecting legacy devices to modern systems.

## Long description

The StarTech ICUSB422IS is a 1-port metal industrial USB to RS422/RS485 serial adapter with isolation, designed to add an RS-422/RS-485 serial port to a laptop or desktop via USB. The adapter includes a DB9 connector and a removable terminal block for hard-wired connections, and it is USB bus powered so no external power adapter is required. Its rugged metal enclosure and electrical isolation make it suitable for industrial environments where protection of sensitive equipment and stable data transmission are important.
Advantages
This USB to RS422/RS485 adapter supports both RS-422 and RS-485 interfaces and offers flexible connection options through a DB9 port or a terminal block. The built-in circuit isolation protects connected industrial devices from electrical faults and interference. The adapter is bus powered from the host USB port, eliminating the need for an external power supply, and its metal construction supports durable installation in harsh environments.
Suitable for
Connecting legacy RS-422 or RS-485 serial devices to modern laptops or desktops
Industrial automation and control systems requiring isolated serial communication
Field service, testing, and integration where durable, mountable serial adapters are needed
Key specifications
Model: StarTech ICUSB422IS
Interfaces: USB to RS-422 / RS-485 (DB9 and terminal block)
Ports: 1 serial port
Power: USB bus powered (no external adapter required)
Cable: Includes USB B connector and 1.8 m cable
Enclosure: Metal, industrial-grade
Isolation: Circuit isolation for electrical protection
Brand: StarTech
MPN: ICUSB422IS
EAN: 0065030830683
How to use
Connect the adapter to the host computer using the USB B cable. Attach the RS-422 or RS-485 device to the DB9 connector or wire the signals to the terminal block according to the device pinout and grounding requirements. The adapter draws power from the USB port, so no separate power connection is necessary. Install any required drivers on the host system if prompted, then configure the serial port settings (baud rate, parity, stop bits) in your application or operating system to match the connected device.
Usage recommendations
Install the adapter in a location that maintains good airflow and minimal exposure to extreme mechanical stress. Verify wiring polarity and grounding when using RS-485 networks, and use the adapter's isolation feature to protect sensitive equipment in electrically noisy industrial environments.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.18 kg |
| Storage temperature (T-T) | -20 - 85 |
| Package weight | 390 g |
| Operating temperature (T-T) | 0 - 55 |
| Cable length | 1.8 m |
| Relative humidity | 5 - 95 |
| Height | 23 mm |
| Input voltage | 5 |
| Data transfer rate | 0.0009 Gbit/s |
| Width | 64 mm |
| Depth | 118 mm |
| Product colour | Black |
| Cables included | USB |
| Compatible operating systems | Windows CE (4.2, 5.0, 6.0), XP Embedded, 98SE, 2000, XP, Vista, 7, 8, 8.1, 10, 11
Windows Server 2003, 2008 R2, 2012, 2012 R2, 2016, 2019
macOS 10.6 to 10.15, 11.0, 12.0, 13.0
Linux Kernel 3.0.x+ |
| Package depth | 230 mm |
| Package height | 160 mm |
| Package width | 45 mm |
| Master (outer) case height | 511 mm |
| Master (outer) case width | 502 mm |
| Connector 1 | USB B |
| Connector 2 | RS-422/485 |
| Connector 1 gender | Male |
| Connector 2 gender | Female |
| Quantity per pack | 1 pc(s) |
| Master (outer) case length | 400 mm |
| Products per master (outer) case | 50 pc(s) |

## FAQ

### How much does the USB to RS422/RS485 Serial Adapter StarTech ICUSB422IS cost, and is it available for purchase?

The price is 180.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 40 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 13.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Cash payment, Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All StarTech products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized StarTech service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/628684/56588463_large.webp